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Poppet valve



                                                                                                                                   Solenoid operated poppet valve
                                                                                                                                                                                        NG4-Mini
                                                                                                                                   Flange construction                                  Wandfluh standard
                                                                                                                                    ◆  2/2-, 3/2- und 3/4-way
                                                                                                                                    ◆  normally open and normally closed                x II 2 G Ex db IIC T6, T4
                                                                                                                                    ◆  Q  = 15 l/min                                    x II 2 D Ex tb III C T80 °C, T130 °C
                                                                                                                                       max
                                                                                                                                    ◆  P  = 350 bar                                     x I M2 Ex db I Mb
                                                                                                                                       max
                                                                                                                                                                                        Class I Division 1
                                                                                                                                                                                        Class I Zone 1



                                                                                                                                   DESCRIPTION                                          APPLICATION
                                                                                                                                   Direct  operated  2/2-,  3/2  and  3/4-way  solenoid  poppet  valve  in   These  valves  are  suitable  for  applications  in  explosion-hazard
                                                                                                                                   sandwich construction. By means of the pressure tight switching   areas, open cast and also in mines. Poppet valves are used where
                                                                                                                                   solenoid, the poppet valve spool is opened or closed acting against   tight closing functions of the valve are essential like leakage-free
                                                                                                                                   the  spring.  Due  to  the  poppet  spool  construction  with  pressure   load  holding,  clamping  or  gripping.  Miniature  values  are  used



                                                                                                                                   compensation on both sides, the flow through the valve is possible   where both, reduced dimensions and weight are important.
                                                                                                                                   in both directions.  The metallically sealing seat closes the valve
                                                                                                                                   virtually leak free.The pressure tight encapsulated Ex-protection
                                                                                                                                   solenoid coil prevents an explosion on the inside penetrating to the
                                                                                                                                   outside as well as an ignitable surface temperature.
                                                                                                                                   CERTIFICATES                                         ACTUATION
                                                                                                                                             Surface  Mining   Standard      Z604        Actuation          Switching solenoid, wet pin push type,
                                                                                                                                                              -25 °C to…  -40 °C to…                        pressure tight
                                                                                                                                    ATEX       x       x          x           x          Execution          MKY45 / 18x60 (data sheet 1.1-183)
                                                                                                                                    IECEx      x       x          x           x                             MKU45 / 18x60 (data sheet 1.1-184)
                                                                                                                                                                                         Connection         Cable gland for cable Ø 6,5…14 mm
                                                                                                                                    CCC        x       x          x           x
                                                                                                                                    EAC        x       x          x           x         Attention!  The UL execution is always supplied without cable
                                                                                                                                                                                                 gland
                                                                                                                                    Australia  x       x          x           x
                                                                                                                                    MA                 x          x
                                                                                                                                    UL / CSA   x                  x           x
                                                                                                                                                                                        STANDARDS
                                                                                                                                   The certificates can be found on www.wandfluh.com
                                                                                                                                                                                         Explosion protection  Directive 2014 / 34 / EU (ATEX)
                                                                                                                                                                                         Flameproof enclosure  EN / IEC / UL 60079-1, 31
                                                                                                                                                                                         Cable entry        EN 60079-0, 1, 7, 15, 31
                                                                                                                                                                                         Mounting interface  Wandfluh standard
                                                                                                                                                                                         Protection class   EN 60 529
                                                                                                                                                                                         Contamination      ISO 4406
                                                                                                                                                                                         efficiency


                                                                                                                                   SYMBOL
                                                                                                                                   B.22040b                 B.22041a                    B.32040b                 B.32041a
                                                                                                                                           A                           A                       A                            A
                                                                                                                                          a     b                  a     b                     a    b                    a    b
                                                                                                                                     a               b       a                b           a               b       a               b
                                                                                                                                           P                           P                       P T                          P T

                                                                                                                                   B.3404
                                                                                                                                               A
                                                                                                                                                   ab
                                                                                                                                           a   o         b
                                                                                                                                     a                        b
                                                                                                                                               P T




                                                                                                                                                   www.wandfluh.com  Illustrations are not binding  Data subject to change  1/4  Edition: 21 18  1.11-3132 E
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